(b) Figure 2 shows how a bimetallic strip can be used in a simple alarm system Hol Battery
Contacts
Alarm bell
Bimetallic
strip
Fig: 3
Heat source
(i) Explain briefly how it works
(04 mar
What is the effect of increasing the distance between the contacts? (01 ​

Zirconium has an hcp crystal structure and a density of 6.51 g/cm3. (a) what is the volume of its unit cell in m3? (b) if the c/a ratio is 1.593, compute the values of c and a.

The slope of a velocity time graph over any interval of time gives the during that interval

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.